For about two hours on Monday morning, trading in shares of about 40 stocks on the New York Stock Exchange was halted after a technical glitch led to misquoted prices, including those of Berkshire Hathaway, which showed a drop of more than 99%.
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Trading glitch sends some shares on a wild ride
The exchanges use built-in “circuit breakers” to automatically pause trading when a stock price suddenly swings by a large amount. The exchanges also have rules that allow traders to flag erroneous trades and seek compensation if necessary.
